The Big Bang was the beginning of everything. The building blocks of all life. The start of our story. 13.7 billion years later, a new species struggles for survival on the African savannah. Homo sapiens. Mankind. We work out how to make fire, smelt metal and farm crops. One step a time, we harness nature and shape our destiny. We risk everything to pursue our dreams. We are incredible. One of the most ambitious series in television history. Over twelve hours we tell the story of a superhero. Us.